Effects of Plant Growth Regulators and Fertilizer Treatments on the Growth and Development of Jatropha Curcas

[Objective]To understand the effects of foreign matter on flower bud differentiation and nutritive material of Jatropha curcas.[Method]Different levels of ETH+MET+fertilizer were sprayed on the stem apex with orthogonal test.[Result]Medicine combination could promote floral initiation of Jatropha curcas within a certain extent,of which the ETH(600 mg/L)+ MET(600 mg/L)+ fertilizer(B-Mn) was more significant than others.The tree entered the vegetative stage and reproductive stage in about one month after treatment.The branch sprouted the most numerous buds treated by ETH(600 mg/L)+ MET(600 mg/L)+ fertilizer(N).As the ETH concentration increased,the new shoots increased in number.[Conclusion] There was significant difference in average weekly growth rate of leaf,ETH and fertilizer were the major factors affecting the growth rate of leaf.